CN203326700U - Uninterruptible power supply (UPS) power supply system - Google Patents
Uninterruptible power supply (UPS) power supply system Download PDFInfo
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- CN203326700U CN203326700U CN2013203121935U CN201320312193U CN203326700U CN 203326700 U CN203326700 U CN 203326700U CN 2013203121935 U CN2013203121935 U CN 2013203121935U CN 201320312193 U CN201320312193 U CN 201320312193U CN 203326700 U CN203326700 U CN 203326700U
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- inverter
- power supply
- input
- ups
- correcting circuit
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Abstract
The utility model discloses an uninterruptible power supply (UPS) power supply system, which comprises a filter, a correcting circuit and an inverter. When the AC mains is normal, the input AC of the system is filtered by the filter and then accessed to the correcting circuit to be rectified. The rectified current is converted by the inverter to generate a standard 220V sine-wave voltage and the generated standard 220V sine-wave voltage is then input to a static switch. The system is characterized in that the preceding stage of the inverter is connected in parallel with a boost converter. The DC input is converted by the boost converter to generate a plus or minus 370V DC high voltage to be accessed to the inverter. The boost converter is also connected with a back-discharge prevention unit. The UPS power supply system has the advantages of strong anti-interference ability, high pressure stabilizing precision, high frequency stability, low degree of distortion, and high efficiency.
Description
Technical field
The utility model relates to a kind of electric power system, is specifically related to a kind of uninterrupted power supply electric power system.
Background technology
As everyone knows, exist many problems in electric power network at present, such as power failure, voltage surge, thunderbolt, wave distortion, frequency drift and noise jamming etc., these problems will cause gently miswork of power consumption equipment, heavy consequences such as device damage or system crash.Can these equipment stably work and depend on the power-supply system that whether possesses high-performance, high stable.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of uninterrupted power supply electric power system, and this system rejection to disturbance ability is strong, the precision of voltage regulation is high, frequency stability is high, the distortion factor is little, efficiency is high.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of uninterrupted power supply electric power system, this system comprises filter, correcting circuit and inverter, this system is when civil power is normal, after input AC accesses in correcting circuit and proofreaies and correct after filter is filtered, the standard 220V sine voltage produced through inverter is inputted to static switch, it is characterized in that: described inverter prime access in parallel booster converter, and will after the DC converting one-tenth ± 370V high direct voltage of direct current input, be accessed in inverter by booster converter.
Described booster converter also is connected with anti-reverse device.
The beneficial effects of the utility model are: this system rejection to disturbance ability is strong, the precision of voltage regulation is high, frequency stability is high, the distortion factor is little, efficiency is high.
The accompanying drawing explanation
Fig. 1 is the utility model system configuration schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of uninterrupted power supply electric power system, this system comprises filter, correcting circuit and inverter, this system is when civil power is normal, after input AC accesses in correcting circuit and proofreaies and correct after filter is filtered, the standard 220V sine voltage that the process inverter produces is inputted to static switch, inverter prime access in parallel booster converter, and will after the DC converting one-tenth ± 370V high direct voltage of direct current input, be accessed in inverter by booster converter.Booster converter also is connected with anti-reverse device.
The input of the utility model direct current is after anti-reverse device, by after be transformed into ± 370V of booster converter high direct voltage in the parallel connection of inverter prime, due to when civil power is normal, this voltage is lower than AC rectification voltage, therefore inverter section is by rectified AC power supply, and direct current is in hot standby state.
When commercial power interruption or interchange input overvoltage/undervoltage protection startup; DC input voitage is inverter power supply after booster converter is backward; become the sine voltage output of 220V through inverter; therefore no matter be that civil power is normal; or city's electrical anomaly; this system is to power to the load through inverter, so its output is the alternating voltage of the 220V of frequency stabilization, voltage stabilizing all the time, has really realized non-stop run.This system has that antijamming capability is strong, the precision of voltage regulation is high, frequency stability is high, the distortion factor is little, the efficiency advantages of higher.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a uninterrupted power supply electric power system, this system comprises filter, correcting circuit and inverter, this system is when civil power is normal, after input AC accesses in correcting circuit and proofreaies and correct after filter is filtered, the standard 220V sine voltage produced through inverter is inputted to static switch, it is characterized in that: described inverter prime access in parallel booster converter, and will after the DC converting one-tenth ± 370V high direct voltage of direct current input, be accessed in inverter by booster converter.
2. a kind of uninterrupted power supply electric power system according to claim 1, it is characterized in that: described booster converter also is connected with anti-reverse device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203121935U CN203326700U (en) | 2013-06-03 | 2013-06-03 | Uninterruptible power supply (UPS) power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203121935U CN203326700U (en) | 2013-06-03 | 2013-06-03 | Uninterruptible power supply (UPS) power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326700U true CN203326700U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203121935U Expired - Fee Related CN203326700U (en) | 2013-06-03 | 2013-06-03 | Uninterruptible power supply (UPS) power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218663A (en) * | 2014-09-18 | 2014-12-17 | 国家电网公司 | Uninterrupted power supply (UPS) direct current power supply port device for connecting direct current power supply with transformer substation direct current bus |
-
2013
- 2013-06-03 CN CN2013203121935U patent/CN203326700U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218663A (en) * | 2014-09-18 | 2014-12-17 | 国家电网公司 | Uninterrupted power supply (UPS) direct current power supply port device for connecting direct current power supply with transformer substation direct current bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140603 |